Sieve shinannigans

Welp, if you’re using Sieve with the Dovecot (like you should), the client may behave strange, due to Sieve needs some dot-files and they naturally may come in your mailbox/maildir dir. Some clients are aware, some clients not, but the best way is to put dotfiles somewhere else. Like:

  90-sieve: |
    plugin {
      sieve = file:~/sieve;active=/var/mail/sieve/%u/.dovecot.sieve
    }

Otherwise errors/warnings in the logs, like in Mail:app of the Nextcloud.